| 1. | Start the engine, and let it idle. |
| 2. | Align the steering wheel straight ahead. |
| 3. | Check the EPS SIGNAL in the DATA LIST with the Honda PGM Tester or the HDS. Is Low indicated? YES - Go to 4. NO - Go to 6. |
| 4. | Turn the steering wheel to the full lock position. |
| 5. | Check the EPS SIGNAL in the DATA LIST with the Honda PGM Tester or the HDS. Does it change to HIGH? YES - The EPS signal circuit is OK.n NO - Go to 11. |
| 6. | Turn the ignition switch OFF. |
| 7. | Jump the SCS line with the Honda PGM Tester or the HDS. |
| 8. | Disconnect ECM/PCM connector E (31P). |
| 9. | Disconnect EPS control unit 13P connector. |
| 10. | Check for continuity between ECM/PCM connector terminal E16 and EPS control 13P connector terminal No. 13. Is there continuity? YES - Substitute a known-good EPS control unit, and recheck.n NO - Repair open in the wire between the ECM/PCM (E16) and the EPS control unit.n |
| 11. | Turn the ignition switch OFF. |
| 12. | Disconnect EPS control unit 13P connector. |
| 13. | Turn the ignition switch ON (II). |
| 14. | Measure voltage between ECM/PCM connector terminals A9 and E16. Is there battery voltage? YES - Substitute a known-good EPS control unit, and recheck.n NO - Go to 15. |
| 15. | Turn the ignition switch OFF. |
| 16. | Jump the SCS line with Honda PGM Tester or the HDS. |
| 17. | Disconnect ECM/PCM connector E (13P). |
| 18. | Check for continuity between ECM/PCM connector terminal E16 and body ground. Is there continuity ? YES - Repair short in the wire between the ECM/PCM (E16) and the EPS control unitn NO - Update the ECM/PCM if it does not have the latest software, or substitute a known-good ECM/PCM, then recheck. If the symptom/indication goes away with a known-good ECM/PCM, replace the original ECM/PCM.n |